Find the vertex of each parabola. SEE EXAMPLE 1 16. y=-x2 + 6x + 30
17. y = 3x2 + 12x - 5
I
Find the vertex and y-intercept of the
quadratic function, and use them to graph the
function. SEE EXAMPLES 1 AND 2
18. y = -x2 + 6x – 8 19. y = x2 – 8x + 11
20. y = 3x2 + 18x + 10 21. y=-2x2 – 12x - 5
22. A rocket is launched into the air. The path of
the rocket is modeled by the equation
y=-10x2 + 160x – 100. What is the maximum
height reached by the rocket, in feet?

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Samson is going shopping for sugar and butter to make three different kinds of cookies: lemon bars, peanut butter cookies, and sugar cookies. the recipe for lemon bars calls for 2 cups of flour, 2 cups of sugar, and 1 stick of butter. the peanut butter cookie recipe calls for 2 cups of flour, 4 cup of sugar and 2 stick of butter. the sugar cookie recipe calls for 1 cup of flour, 2 cups of sugar, and 2 sticks of butter. sampson has 13 cups of flour at home, and he buys 12 cups (6 pounds) of sugar and 10 sticks of butter. how many batches of each type of cookie can he make? samson can make batches of lemon bars, batches of peanut butter cookies, and batches of 09 cookies submit reset

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?